I had the same problem,
Initially everything was working fine, full access to all item to translate, then something change, maybe an upgrade in mysql version by my provider, anyway I could not access to most of the content, not even one menu item, ecc.
and now I have other problem trying the uninstallation.
I post the other problem in:
http://www.joomfish.net/forum/viewtopic.php?f=28&t=2651